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Bending Deformation

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Hi,
I need to model the stresses induced due to the insertion of a flexible MEMS resistance (which is fabricated on a flat substrate) into a tube. (See image "explanation_setup.jpg")

So far I've modeled the bending by partitioning my objects into 12 parts and setting the prescribed displacement for the edges to correspond to a half-circle. (see "attempted_deformation.jpg").
This results in many little waves which is not ideal. Also, modeling this way is very tedious.

Is there a simply way of prescribing a "half-circle" displacement directly? And if not, is there a way of getting rid of the waves?

I would be grateful for any help.

Thanks,
Amanda


0 Replies Last Post May 22, 2017, 9:00 a.m. EDT
COMSOL Moderator

Hello Amanda Klaeger

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